Frustum-shaped rupture disk having line of weakness
A rupture disk ( 200 ) having a line of weakness ( 235 ) is disclosed. In one embodiment, a frustum-shaped rupture disk has a shear-scored line of weakness located in one or more of a central truncated portion ( 220 ), an angled frustum portion ( 230 ), a flange portion ( 210 ), and in the areas of transition between a flange portion and an angled frustum portion, and between an angled frustum portion and a central truncated portion. In another embodiment, a frustum-shaped rupture disk has an angled frustum portion, with a line of weakness in the angled frustum portion. A stiffening member may be provided to stiffen a central truncated portion of a frustum-shaped rupture disk.
1. A frustum-shaped rupture disk, comprising:
a flange portion;
a central truncated portion, wherein the central truncated portion forms a dome;
wherein the central truncated portion defines a center, and wherein the dome is offset from the center of the central truncated portion;
an angled frustum portion; and
a transition between the central truncated portion and the angled frustum portion; wherein the angled frustum portion extends inwardly from the flange portion to the transition;
wherein the angled frustum portion includes a line of weakness configured to open when the rupture disk responds to a predetermined pressure.
2. The frustum-shaped rupture disk of claim 1 , further comprising:
an inlet for a pressurized system;
wherein the flange portion is attached to the inlet.
3. The frustum-shaped rupture disk of claim 1 , further comprising:
an outlet for a pressurized system;
wherein the flange portion is attached to the outlet.
4. The frustum-shaped rupture disk of claim 1 , further comprising:
an inlet for a pressurized system; and
an outlet for a pressurized system;
wherein the flange portion is sealed between the inlet and the outlet.
5. The frustum-shaped rupture disk of claim 1 , wherein the line of weakness is a shear-scored line of weakness.
6. The frustum-shaped rupture disk of claim 1 , wherein:
the central truncated portion has a stiffening member.
7. The frustum-shaped rupture disk of claim 6 , wherein the stiffening member is a circular rib structure.
8. The frustum-shaped rupture disk of claim 6 , wherein the stiffening member is a cross-shaped rib structure.
9. The frustum-shaped rupture disk of claim 1 ,
wherein the central portion includes at least one wave configured to stiffen the central truncated portion.
10. A frustum-shaped rupture disk, comprising:
a flange portion;
a central truncated portion, wherein the central truncated portion forms a cone;
an angled frustum portion; and
a transition between the central truncated portion and the angled frustum portion;
wherein the angled frustum portion extends inwardly from the flange portion to the transition, wherein the angled frustum portion includes a line of weakness configured to open when the rupture disk responds to a predetermined pressure.
11. The frustum-shaped rupture disk of claim 10 , further comprising:
an inlet for a pressurized system;
wherein the flange portion is attached to the inlet.
12. The frustum-shaped rupture disk of claim 10 , further comprising:
an outlet for a pressurized system;
wherein the flange portion is attached to the outlet.
13. The frustum-shaped rupture disk of claim 10 , further comprising:
an inlet for a pressurized system; and
an outlet for a pressurized system;
wherein the flange portion is sealed between the inlet and the outlet.
14. The frustum-shaped rupture disk of claim 10 , wherein the line of weakness is a shear-scored line of weakness.
15. The frustum-shaped rupture disk of claim 10 , wherein:
the central truncated portion has a stiffening member.
16. The frustum-shaped rupture disk of claim 15 , wherein the stiffening member is a circular rib structure.
17. The frustum-shaped rupture disk of claim 15 , wherein the stiffening member is a cross-shaped rib structure.
18. The frustum-shaped rupture disk of claim 10 ,
wherein the central portion includes at least one wave configured to stiffen the central truncated portion.
19. A frustum-shaped rupture disk, comprising:
a flange portion;
a central truncated portion;
a stiffening member configured to provide stiffness to the central truncated portion;
an angled frustum portion; and
a transition between the central truncated portion and the angled frustum portion;
wherein the angled frustum portion extends inwardly from the flange portion to the transition, wherein the angled frustum portion includes a line of weakness configured to open when the rupture disk responds to a predetermined pressure.
20. The frustum-shaped rupture disk of claim 19 , further comprising:
an inlet for a pressurized system;
wherein the flange portion is attached to the inlet.
21. The frustum-shaped rupture disk of claim 19 , further comprising:
an outlet for a pressurized system;
wherein the flange portion is attached to the outlet.
22. The frustum-shaped rupture disk of claim 19 , further comprising:
an inlet for a pressurized system; and
an outlet for a pressurized system;
wherein the flange portion is sealed between the inlet and the outlet.
23. The frustum-shaped rupture disk of claim 19 , wherein the line of weakness is a shear-scored line of weakness.
24. The frustum-shaped rupture disk of claim 19 , wherein the stiffening member is a circular rib structure.
25. The frustum-shaped rupture disk of claim 19 , wherein the stiffening member is a cross-shaped rib structure.
26. The frustum-shaped rupture disk of claim 19 ,
wherein the stiffening member comprises at least one wave.